“Quoted by Courtlandt Palmer, president of the Nineteenth Century Club of New York, while introducing Robert G. Ingersoll as a speaker in a debate, "The Limitations of Toleration," at the Metropolitan Opera House, New York City (1888-05-08); from The Works of Robert G. Ingersoll (Dresden Publishing Company, 1902), vol. VII, p. 217”

Source: Wikiquote